--- a/mercurial/localrepo.py	Wed Jan 23 07:49:36 2019 -0500
+++ b/mercurial/localrepo.py	Wed Jan 30 18:15:38 2019 +0100
@@ -2920,7 +2920,6 @@
 
     if scmutil.gdinitconfig(ui):
         requirements.add('generaldelta')
-        # experimental config: format.sparse-revlog
         if ui.configbool('format', 'sparse-revlog'):
             requirements.add(SPARSEREVLOG_REQUIREMENT)
     if ui.configbool('experimental', 'treemanifest'):